For problems 1-5, use the unit circle to calculate the given values. 1. cos 120

Q: If cos(θ)=-4/5 and θ is in the 3rd quadrant, find sin(θ)sin(θ)

A: see the details  solution in below

Q: If sec(x) 28 17 Give exact answers. sin()-( $(²) = an (-1/2) = COS (in Quadrant 1), find

A:

Q: find the exact values for a) sin (2x), b) cos(2x), and tan(2x) without solving for x if tan x=-8,…

A:

Q: Evaluate the following, without the use of a calculator: 25л csc 4 (4) tan cos 20 3

A:

Q: What happens when you try to find tan 90  0 on your calculator? Why does thishappen?

A: Turn on t1-83 calculator and enter tan(900) using appropriate keys. Now press enter and obtain the…

Q: Evaluate the expression under the given conditions. cos(θ − ϕ);  cos(θ) = 5/13, θ in Quadrant IV,…

A:

Q: Given that cos 80 = 0.173648… , explain how to find cos 100, cos 260, cos 280, and sin 190 without…

A: Given that  cos 80 = 0.173648… We have to find the values of  cos 100, cos 260, cos 280, and sin 190…

Q: if sin(x)= -9/41  and x is in quadrant III, find the exact values of the expressions without solving…

A:

Q: if tanlx) 16 in quadrant 2, find: a.) Sint) b.) cos () c.) tan ě) 2

A:

Q: 3 If cos(x) = 8 Give exact answers. sin() = COS I tan N (1) = - wwwwwww (in Quadrant 2), find

A:

Q: Use a calculator to find the approximate value of each expression rounded to two decimal places.…

A: To use a calculator to approximate the value of expression rounded to two decimal points: tan-1(0.2)…

Q: Use a calculator to approximate each value to four decimal places.       cos (-2.5)

A: cos (-2.5) = ?   We know,  cos(-θ) = cos(θ)

Q: Can you give me the exact solution (no decimals) please

A:

Q: Find the exact value of the expression without using a calculator.     cos(45o) + sec(120o)

A: Given : cos(45o) + sec(120o)

Q: Find cos θ/2, if cos θ=−3/5 and θ lies in quadrant III

A:

Q: hello, I know the answer for this problem, but I used a calculator and I'm not sure how to show my…

A:

Q: In Problem,find the exact value of each expression

A: Given: y=cos-1sin7π6 For finding value of given expression, we simplify it

Q: Find the exact value of the given expression without using a calculator. 23n tan -- 4

A: The solution is :

Q: If cos(0) = sin(0) = - 1 and is in quadrant III, find the exact value of sin(0). 9

A:

Q: find tan(a-B) and sin (2B) given that tan a= -4/7, a is in quadrant 4, cosB = -3/5, B is in…

A:

Q: A 10-ft ladder rests against a wall at π/4 radians. If it were to begin to slip, when the bottom of…

A:

Q: your calculator and compute to 4 decimal places (a) cos(22°) Use (b) tan(/3) (c) csc(40°)

A:

Q: If LG is obtuse which would have a negative value? - Both cos G and tan G - Sin G COS G

A: Given problem:- If ∠G is obtuse then which would have negative value ? Both cosG and tanG sinG cosG…

Q: Provide the value of arccos(sin(14π/13)) without the use of a calculator

A: using cosπ2 - θ = sin(θ)

Q: In Problem,find the exact value of each expression

A: cotarccos-33=cotarccos-33Use the following identity: cotarccosx=x1-x2=-331--332=-22

Q: If the sine function whose graph is the graph of TT y = -2 sin 2 (x – 4) + 1 shifted units to the…

A: Given: The graph of function y=-2sin2x-π4+1 is shifted π2 units to the left and 3 units upward, To…

Q: If tan (x) = 23/13 (in Quadrant-I), find   cos(2x)=   Please leave the answer accurate to 4…

A: Given, tanx=2313 and x lies in first quadrant.

Q: exact

A: Given sinA=(3)/(5) and cosB=(12)/(13)  both are lie  in quadrant 1 To find the exact value of…

Q: For questions 12-15, prove the trigonometric identity. 12. 1-sin2B (cosß – sinß)²

A:

Q: Find the exact value, in radians, of the expression cos - 1 (- 1). Use a graph to help picture the…

A: Given: cos^-1(-1)

Q: Use your calculator to find sin e and cos e if the point (9.33, 7.07) is on the terminal side of e.…

A: Given : Let A (9.33,7.07), the attached figure to better understand the problem. Find the value of r…

Q: For problems 4-7, convert each radian measure to degrees. Round your answer to the nearest tenth, if…

A: Topic:-  radian to degree

Q: 19n 3) 4

A:

Q: If tan(x) = − 15/8 and x is in quadrant IV, find the exact values of the expressions without solving…

A: Given, tanx =-158 and x is in quadrant IV, We have to find sin(x/2) cos(x/2)  tan(x/2)

Q: For problems 1 – 6, use the triangle to the right to find the given trigonometric ratios. 1. cos N =…

A: 1)cos N=adjacent sidehypotenuse           =NMNP           =915=352)sin N=opposite sidehypotenuse…

Q: Find the exact values of the following and simplify. Indicate if an expression is undefined. Do not…

A: Refer to the question, we have to find the value of provided expression.tan(cos^-1 (-3/4) )

Q: Use your calculator to find the following to FOUR decimal places. a. Sin 70 =| b. Cos 32 = c. Tan 14…

A: Since you have asked multiple questions in a single request so we will be answering only first…

Q: For problems 1-3, use double angle identities to find the exact values of sin 2x, cos 2x, and tan 2x…

A: Note:- Since you have asked multiple question As per our policy, we will solve the first question…

Q: 43л 4) 18

A:

Q: Find the values of other five trigonometric functions if cosx=(-1/2) if x lies in third quadrant

A:

Q: cos cos 37°

A:

Q: Use your calculator to find sin (theta) and cos (theta) if the point (9.37, 7.02) is on the terminal…

A:

Q: 2 tan x +4 tan x - 3 = 0 %3D

A: Solve the following equations for . State your answers in exact form (when possible) or rounded to…

Q: If cos x = -12/13 and x is in quadrant III, find a. sin () b. cos (2x)

A: given data  cosx = -12/13   a 2sin2x/2 = 1- cosx 2sin2x/2 = 1 -(-12/13) sin2x/2=25/26 sinx/2 = 5/26…

Q: FInd the exact value of sin(x-y).

A:

Q: Use a calculator to approximate cos 45 to four decimal places.

A: Consider the given trigonometric term cos45

Q: Be sure you are in degree mode! Plug the following values into your calculator and get a decimal…

A:

Q: Use your calculator to find sec-1 8. in radians. Round your answer to four decimal places.

A:

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.